>gnl|CDD|176237 cd08276, MDR7, Medium chain dehydrogenases/reductase (MDR)/zinc-dependent alcohol dehydrogenase-like family. This group is a member of the medium chain dehydrogenases/reductase (MDR)/zinc-dependent alcohol dehydrogenase-like family, but lacks the zinc-binding sites of the zinc-dependent alcohol dehydrogenases. The medium chain dehydrogenases/reductase (MDR)/zinc-dependent alcohol dehydrogenase-like family, which contains the zinc-dependent alcohol dehydrogenase (ADH-Zn) and related proteins, is a diverse group of proteins related to the first identified member, class I mammalian ADH. MDRs display a broad range of activities and are distinguished from the smaller short chain dehydrogenases (~ 250 amino acids vs. the ~ 350 amino acids of the MDR). The MDR proteins have 2 domains: a C-terminal NAD(P)-binding Rossmann fold domain of a beta-alpha form and an N-terminal catalytic domain with distant homology to GroES. The MDR group contains a host of activities, including the founding alcohol dehydrogenase (ADH), quinone reductase, sorbitol dehydrogenase, formaldehyde dehydrogenase, butanediol DH, ketose reductase, cinnamyl reductase, and numerous others. The zinc-dependent alcohol dehydrogenases (ADHs) catalyze the NAD(P)(H)-dependent interconversion of alcohols to aldehydes or ketones. Active site zinc has a catalytic role, while structural zinc aids in stability. ADH-like proteins typically form dimers (typically higher plants, mammals) or tetramers (yeast, bacteria), and generally have 2 tightly bound zinc atoms per subunit. The active site zinc is coordinated by a histidine, two cysteines, and a water molecule. The second zinc seems to play a structural role, affects subunit interactions, and is typically coordinated by 4 cysteines. Length = 336

 Score =  166 bits (424), Expect = 6e-42
 Identities = 101/332 (30%), Positives = 155/332 (46%), Gaps = 42/332 (12%)

Query: 23  LAESPIPQPQKEEILIKVEAIGVNRPDVMQRKGLYPPPKNANPILGLEVAGKIVDLGENT 82
           L E P+P+P   E+L++V A+ +N  D++   G YPPP     I   + AG++V +GE  
Sbjct: 17  LVEEPVPEPGPGEVLVRVHAVSLNYRDLLILNGRYPPPVKDPLIPLSDGAGEVVAVGEGV 76

Query: 83  THWNIGDEVCALVN-----------------GGGY----AEYCLSHQGHTLPIPKGYNAI 121
           T + +GD V                      GG      AEY +  +   +  P   +  
Sbjct: 77  TRFKVGDRVVPTFFPNWLDGPPTAEDEASALGGPIDGVLAEYVVLPEEGLVRAPDHLSFE 136

Query: 122 QAASLPESFFTVWANLFQTANLRSGQTVLIHGGSSGIGTTAIQLASYFGATVYTTAKSEE 181
           +AA+LP +  T W  LF    L+ G TVL+  G+ G+   A+Q A   GA V  T+ S+E
Sbjct: 137 EAATLPCAGLTAWNALFGLGPLKPGDTVLVQ-GTGGVSLFALQFAKAAGARVIATSSSDE 195

Query: 182 KCLACLK-LGAKHAINYLKE-DFLEILQKETQGRGIDIILDMVGAEYLNQHLTLLSKEGK 239
           K L   K LGA H INY    D+ E + K T GRG+D ++++ G   L Q +  ++  G 
Sbjct: 196 K-LERAKALGADHVINYRTTPDWGEEVLKLTGGRGVDHVVEVGGPGTLAQSIKAVAPGGV 254

Query: 240 LIIISFLGGNIATEINLNPIISKRITITGSTLRRRTDIA---KQSIRDSLQLKIWPLLNS 296
           + +I FL G     + L P+++K  T+ G        IA   +       +      + +
Sbjct: 255 ISLIGFLSG-FEAPVLLLPLLTKGATLRG--------IAVGSRAQFEAMNR-----AIEA 300

Query: 297 HVIAPVIHTVLPLGKVAMAHDIMEKSEHIGKI 328
           H I PVI  V P  +   A+  +E   H GK+
Sbjct: 301 HRIRPVIDRVFPFEEAKEAYRYLESGSHFGKV 332